Leibniz Biscuit Traybake



I found itsy bitsy Leibniz Biscuits in a local supermarket and had the urge to see what they would be like in a cake. They are just so teeny and cute. I didn’t have a recipe, so halved my vanilla traybake recipe and used this as a base. I put the biscuits in the batter & on the batter before I baked it. Then I also used them for decorations. Basically, it’s a triple biscuit traybake! The biscuits were a novelty and the kids got a kick out of including them in it. The cake was tasty though and it got devoured.

You need the cake ingredients below & 1 packet of Leibniz Biscuits. I opted to also use chocolate buttercream as well, but it’s also nice without the buttercream – just not as indulgent.


  • 112 g softened butter
  • 112 g castor sugar
  • 137 g self raising flour (sifted)
  • 1 level teaspoon of baking powder (sifted)
  • 2 large eggs
  • 2 tablespoons of milk
  • 1/2 teaspoon vanilla extract



  1. Preheat oven to 180° or 160° fan. Grease a 20 cm x 30 cm tin, I use the tin that I make brownies in. Line the base with baking parchment
  2. Measure all the ingredients into a large bowl and beat until blended.
  3. Spread half the mixture into the prepared tin and level. Scatter some biscuits over the batter.
  4. Gently spread the remaining batter over the mixture in the tin.
  5. Sprinkle more biscuits on top of the batter – I think it looks prettier chocolate side down.
  6. Bake in the pre-heated oven for around 22-25 minutes or until the cake has shrunk from the sides of the tin and springs back to touch. Leave to cool in tin
  7. Cover with buttercream when cooled (I halved this chocolate buttercream recipe) and spread it over the cooled caked. Then scattered yet more Leibniz biscuits on top.


Some @thecakemum observations/tips:

  • I think this would also work with mini cookies or Lotus biscuits, but haven’t tried it it yet.
  • My kids loved scattering the biscuits on the batter – thought they did try to make a face and I had to remind them to spread them out.
  • I bought my biscuits in Nolans Supermarket, Clontarf, Dublin.

Happy Baking

De (aka thecakemum)

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